Hello
Here is the solution
Enter the IPEI number as unblock code. If the IPEI number is unknown, it can be read out with the help of the programming cable and the Cordless Phone Manger program.
The IPEI number can be found in the "End-user PIN" menu in the Cordless Phone Manger program
The IPEI number can also be found in the DECT system (not applicable for the integrated DECT system in MD110).
When the phone has been unblocked and the user wants to active the phone lock again, the phone will ask for the old PIN code, if this is unknown, the PIN code can be restored to the default value (0000) by entering the Development Services menu (Call time > * < < * <) and selecting Default prg.
Good luck